Synonyms|673Antonyms|118|Broader|13Narrower|17Related|401

373 entries under verb topic. ×

4
clear(support, maintain, favor, sustain)
4
defend(support, hold, help, maintain)
4
determine(ascertain, evince)
4
maintain(support, hold, help, favor)
4
reinforce(support, increase, establish, extend)
4
sanction(noun, support, back, sign)
4
settle(support, show, determine, back)
4
try out(expression, phrasal verb, check, examine)
4
vouch for(expression, show, confirm, prove)
3
ascertain
3
assay(check, show, determine, examine)
3
assure(support, maintain, back, declare)
3
attest to(expression, phrasal verb, support, maintain)
3
check out(expression, phrasal verb, support, back)
3
circumstantiate(support, determine, back, sign)
3
clinch(verify, ensure)
3
ensure
3
exhibit(show, complete, establish, express)
3
experiment(check, show, determine, examine)
3
explain(support, show, determine, favor)
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APASmart Define. (2015). substantiate thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/substantiate/thesaurus/synonyms
ChicagoSmart Define. 2015. "substantiate thesaurus" https://smartdefine.org/substantiate/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, substantiate thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/substantiate/thesaurus/synonyms>.
MLASmart Define. "substantiate thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/substantiate/thesaurus/synonyms>